Wednesday, July 29, 2009

Reprogramming human cells without inserting genes

Source: Worcester Polytechnic Institute
Date: July 29, 2009

Summary:

A research team comprised of faculty at Worcester Polytechnic Institute's (WPI) Life Sciences and Bioengineering Center (LSBC) and investigators at CellThera, a private company also located at the LSBC, has discovered a novel way to turn on stem cell genes in human fibroblasts (skin cells) without the risks associated with inserting extra genes or using viruses. This discovery opens a new avenue for reprogramming cells that could eventually lead to treatments for a range of human diseases and traumatic injuries by coaxing a patient's own cells to repair and regenerate the damaged tissues.

The research team reported its findings in the paper "Induction of Stem Cell Gene Expression in Adult Human Fibroblasts without Transgenes," published online July 21, 2009 (in advance of September print publication) as a "fast track" paper from the journal Cloning and Stem Cells. (Cloning, Stem Cells. 2009 Jul 21.) "We show that by manipulating culture conditions alone, we can achieve changes in fibroblasts that would be beneficial in development of patient-specific cell therapy approaches," the authors wrote in the paper.